Improvement in bed-bottoms



D. SWARTZ.

Bed-Bottom.

No. 210,368. Patented Nov. 26,1878.

.dttorn eys N-FETEHS, FHOTO-LITHQGRAPHER. WASHlNGTON. D O,

UNITED STATES PATENT OEEIoE.

DAVID SWARTZ, OF WOODSTOCK, VIRGINIA.

IMPROVEMENT IN BED-BOTTOMS.

Specification forming part of Letters Patent No. 210,368, dated November 26, 1878; application filed May 29, 1878.

To all whom it may concern:

Be it known that I, Dr. DAVID SWAR'IZ, of Woodstock, in the county of Shenandoah, and in the State of Virginia, have invented certain new and useful Improvements in Bed-Bottoms; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specifioation.

My invention relates to bed-bottoms; and consists of devices for keeping the cords or cloth on the same in proper position, as hereinafter more fully set forth.

In the accompanying drawings, forming a part of this specification, Figure 1 represents a plan view; Fig. 2, a cross-section taken through line a: a, Fig. 1; Fig. 3, a view showin g one of the ratchets on one end of the rollers; Figs. at and 5, broken views of the side rail and foot-board.

Arepresents the side rails of abedstead; A, the head-board, and B the foot-board. The inner faces of both side rails, near the headboard, are provided each with a vertical groove, a, extending from the top a suitable distance toward the bottom edges of the rails, as seen in Fig. 5. Near the lower part of the foot at each end is a circular recess, the object of which will be hereinafter set forth.

The bed-bottom consists of two rollers, D D, of a length to suit the bed-frame. These rollers have enlarged beads at one end, and are provided with ratchet-teeth D as seen in Fig. 3. The heads are also provided with openings .D, to allow a pin or bar to be inserted for rotating them. Both rollers are journaled in a cross-piece, B, on the face of whichis a spring, O,which has its two ends acting upon the two ratchets D D This spring acts as a double pawl to prevent both rollers from turning inward and slacking the canvas bottom.

E represents a cloth or a series of ropes, which is connected to the two rollers. On the back of the head-board A is a pocket, (1, within which is kept the pin or bar I), which is used for turning the rollers.

It will be seen that the foot ends of the rollers are inserted in the holes 3 in the footboard, while the cross-piece B lies in the grooves as in the side rails.

By thus connecting the bed-bottom to the frame the former can be readily detached from the latter, and the holes in the foot-board form bearings for the foot ends of the rollers to revolve in.

As the cords or cloth E become ragged the pin 1) is inserted in one of the holes in the head of the roller and the roller turned as far as necessary, so as to take up the slack. The double spring-pawl holds the rollers in position as each partial turn is made. The slack may be taken up by using the pin in one roller or in both rollers alternately.

I .do not broadly claim a bed-bottom composed of a flexible sheet connected to two parallel rollers, for taking up the slack in the sheet.

Having thus fully described my invention, what I claim is- In combination with the bed-frame provided with the vertical grooves m a; in the side rails near the head, and circular recesses y in the front board, the readily-detachable bottom, consisting of the rollers D D, provided with pierced blocks D, having ratchets D and journaled into the cross-piece B, the doubleacting spring 0, and the flexible sheet E, substantially as set forth.

In testimony that have hereunto set my April, 1878.

I claim the foregoing I hand this 16th day of D. SIVARTZ.

Witnesses H. AUBREY TOULMIN, JNo. H. GRABILL. 

